Siglent SPD3303X-E

Last updated: November 9, 2026

Siglent SPD3303X-E
3.6/5#3 of 9 in multi-output bench power supplies
3.6

A quiet triple-output linear supply for electronics labs that power analog and logic rails at once.

  • 32 V / 3.2 AOutput
  • 220 WPower
  • LinearType
  • USB, LANPC control
Check price at Amazon$459

Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Very low output noise on the main channels
  • Scriptable over USB or the network
  • Two 32 V channels plus a 5 V logic rail
  • Three-year warranty
Cons
  • Coarser 10 mV/10 mA steps than the SPD3303X
  • Heavy at nearly 18 lb

How it scores

The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

Specifications

Model numberSPD3303X-E
Output
TypePower supply
RegulationLinear
Channels3
Channel ratings32 V/3.2 A, 32 V/3.2 A, 2.5/3.3/5 V/3.2 A
Max voltage32 V
Max current3.2 A
Rated power220 W
Ripple and noise0.3 mVrms
Precision
Setting resolution10 mV / 10 mA
Readback resolution10 mV / 10 mA
Control
PC interfacesUSB, LAN
SCPIYes
Stored setups5
Build
Weight17.6 lb
Warranty3 years

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